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AssigneesTDK Corporation, Toray Industries, Inc.
InventorsHiroshi Kurihara, Toshifumi Saito, Miki Kasabo, Toru Sugahara, Takashi Tanoue, Kazuya Matsumura
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An electromagnetic wave absorber has a configuration in which at least three hollow tetrahedrons, each having one open face, are connected to one another so that each surface opposite to a respective open face of the hollow tetrahedrons defines a respective side face of a hollow pyramid. Preferably, the electromagnetic wave absorber is made of sheet electromagnetic wave absorption members, which have a corrugated board structure in which at least one sheet includes an electrically conductive material. The electromagnetic wave absorber is low-cost, has reduced transport volume, excellent electromagnetic wave absorption characteristics from low frequency to high frequency with a shorter absorber length, has no or small difference in characteristics due to polarization plane, is lightweight and high in structural strength, and easy to manufacture and install.
An electromagnetic wave absorber comprising at least three hollow tetrahedrons, each tetrahedron having a first triangular surface including an electrically conducting material, and a pair of second triangular surfaces, including an electrically conducting material, the pair of second triangular surfaces defining between them an open face of the tetrahedron opposite the first triangular surface, the tetrahedrons being connected to one another at edges of the first triangular surfaces so that each first triangular surface defines a respective side face of a hollow pyramid and the pair of second triangular surfaces of each of the tetrahedrons forms a wedge part extending from and outside the hollow pyramid.
An electromagnetic wave absorber comprising at least three hollow tetrahedrons, each tetrahedron having a first triangular surface including an electrically conducting material and a pair of second triangular surfaces, including an electrically conducting material, the pair of second triangular surfaces defining between them an open face opposite the first triangular surface of the tetrahedron, the tetrahedrons being connected to one another so that each open face defines a respective side face of a hollow pyramidal shape and the pair of second triangular surfaces of each of the tetrahedrons forms a wedge part extending from and outside the hollow pyramidal shape.
A method of manufacturing an electromagnetic wave absorber, the method comprising:
A method of manufacturing an electromagnetic wave absorber comprising:
A method of manufacturing an electromagnetic wave absorber, the method comprising:
Dependencies are inferred from the claim text.